查询词典 coal

In this thesis, two chemical structural models were constructed based on several structure parameters derived from FTIR and 13C NMR data, which were processed by curve-fitting and curve-resolved. Modified models were obtained by simulation oftheir molecular vibration spectra using Cerius 4.6/IR module andthe structural parameters from 13C NMR. Potential energy, bondenergy and non-bond energy of the minimum-energy conformations of coal macromolecules were calculated by molecular mechanics calculation and molecular dynamics simulation. These results demonstrate the importance of hydrogen bonding and van der Waals interactions in the formation and stabilization of coal macromolecular structure, and a strongest tendency of hydrogen bonding interactions to increase with the coal molecules but the Coulombs force.

本文运用煤结构的傅立叶红外光谱和固体核磁共振碳谱~(13C NMR测试方法所得的结果，经过谱图分峰、分析，计算出若干表征煤大分子结构参数，并综合前人的经验和共识，利用计算机分子绘图软件系统构建了表征两种褐煤的化学结构模型，在Cerius~2 4.6／IR模块中计算了分子振动红外光谱，同时结合碳谱所计算的分子结构参数拟合、修正了该结构模型，得到了能表征这两种煤样的分子结构模型，作为用分子动力学模拟和量子化学计算的初始结构模型。

Coal is mainly physical adsorption to Cr〓(Ea=9. 245kJ·mol〓). When the concentration of waste water is comparatively low, adsorption rate to Cr〓 reaches 90% or so. The decolor rate is more than 63. 8% when coal depurates Rogor waste water. The COD removal rate is about 12% in purifying life-sewage using coal A.

煤在Cr〓溶液中对Cr〓主要为物理吸附（Ea=9.245kJ·mol〓），当Cr〓浓度较低时其去除率可达90%左右；煤处理乐果废水时脱色率高于63.8%；处理生活废水时COD去除率为12%左右。

Based on PKM gasifier coal lock hopper auto feed coal DCS system program's development and application, PKM Gasifier can auto feed coal and produce gas safely and steady.

通过对加压气化炉煤锁DCS自动加煤系统的开发与应用，来实现PKM气化炉加煤的自动和优化控制，以确保气化炉稳定运

For coal-fired boilers: coal rate of 8 ~ 20%; clear coking coal-fired system 50 ~ 95%; to reduce sulfur emissions 20 ~ 30%; to reduce harmful gas emissions 50 to 95 percent; firepower improve about 20%; lower value of about 14% of spontaneous combustion, and life brought about by the extension of the boiler to reduce the repair cycle of the furnace, flue, heating surface, such as equipment maintenance Qing Jiao role in enhancing the stability of combustion, reducing harmful gas emissions and other benefits.

对于燃煤锅炉：节煤率为8～20％；清除燃煤系统结焦50～95％；降低硫排放20～30％；降低有害气体排放50～95％；火力提高20％左右；降低自燃值14％左右，并带来延长锅炉使用寿命，减少维修周期，对炉膛、烟道、受热面等设备具有清焦保养作用，提高燃烧的稳定性，减少有害气体的排放等效益。

The poly-generation process,which combined the CFB combustion and coal pyrolysis is one of the effective coal utilization means in our country.This process is based on CFB,and combined combustion with pyrolysis.It make the combined produce of heat,electricity,gas and tar in a system become reality.This paper summarized the research situation about solid heat carrier coal pyrolysis based on CFB.

循环流化床燃烧/煤热解多联供技术是我国煤资源的有效利用方式之一，该工艺过程是以CFB为基础，集燃烧和热解工艺于一体，实现了热、电、气、油在一套系统中的联合生产，同时对基于CFB的固体热载体煤热解工艺的研究状况进行了综述。

"The combination of coal gasification and carbon capture and sequestration is crucial for clean coal development and presents great opportunities for countries with substantial reserves of coal such as the USA, China and India," says Lewis Gillies, BP's Director of Hydrogen Power.

BP 氢能源部经理 Lewis Gillies 表示：&煤气化技术和碳采集和储存技术的结合对洁净煤的开发至关重要，而且给美国、中国和印度等煤储量丰富的国家带来了良机。&

Rolling type grate: burning coal in rolling mode, with high burnout rate, thoroughly treated side-sealed air, suitable to burnⅡⅢ soft coal and coal gangue.

滚动炉排（该炉排将煤滚动燃烧，燃尽率高，彻底解决了侧密风）适用ⅡⅢ烟煤和煤矸石。

L Rolling type grate: burning coal in rolling mode, with high burnout rate, thoroughly treated side-sealed air, suitable to burnⅡⅢ soft coal and coal gangue.

滚动炉排（该炉排将煤滚动燃烧，燃尽率高，彻底解决了侧密风）适用ⅡⅢ烟煤和煤矸石。

Coal miners; coal seams; coal haulers.

煤矿工；煤层；运煤工

The promotion of coal liquefaction by iron and tin has been compared in two Victorian brown coals, Morwell and Coolungoolun. Tin was more effective in the low-sulphur Mouwell coal, whereas iron was better suited to the high-sulphur Coolungoolun coal.

我们以Morwell和Coolungoolun两种维多利亚褐煤进行实验，对铁和锡在煤的液化中的催化作用进行了比较，发现锡对低硫的Morwell煤较为有效，而铁则更适合于高硫的Coolungoolun煤。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。